It is important to know how many landbirds have been tested by AFCD this winter. If the incidence of testing these is similar to that last winter, then it would be valid to say there has been a shift in occurrence. However, I suspect AFCD is testing fewer passerines this winter.
I also wouldn't be surprised if the bird market stallholders are being more careful in how they dispose of sick birds.
As Captain points out, the incidence among waterbirds is still very low, albeit slightly higher than previous years.
With regard to ensuring an appropriate perception of the risk among the public is maintained, it doesn't help matters that public parks and Ocean Park have remained open despite bird flu cases, while Mai Po is closed down.
Geoff
